Brake mechanism for radial-axle trucks.



A. F. H. HEAD.

BRAKE MECHANISM FOR RADIAL AXLE TRUCKS.

APPLICATION TILED MAR.18,1913. 1, 1 1 6 422. Patented Nov. 10, 1914.

3 SHEETS"SHEET1- THE NORRIS PETERS c0. FHOTO-LITHO, WASHINGTON. D.

A. F. H. HEAD.

BRAKE MECHANISM FOR RADIAL AXLE TRUCKS.

APPLICATION FILED MAR. 18, 1913.

1, 1 1 6,422. Patented Nov. 10, 1914.

3 SHEETS-SHEET 2.

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ARTHUR F. H. HEAD, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE 3'. G. BRILL CO., OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

BRAKE MECHANISIVI FOR RADIAL-AXLE TRUCKS.

1,116,422. Original application filed. November 2.

a subject of the King of Great Britain, and

a resident, of the city of Philadelphia,

county ofPhiladelphia, and State of Pennsylx'ania, and. whose post-oilice address 18.

care of The J. GLBrill Co, at Sixty-second street and \Voodland avenue, in said city, have invented certain new and useful Improvements in Brake Mechanism for Radial- Axle Trucks, of which the following is a specification.

This invention relates to a brake mechanism, and specifically to means for supporting a brake apparatus in operative relationship with the wheels of an axle in a car truck in which the axles may bodily radiate, as distinguished from the radiation of the truck as a whole.

This application is a division of an application filed by me on the 2nd day of November, 1910, Ser. No. 590,312. In that application, I have showna truck frame, two pairs of axles and their wheels, each axle being provided with devices connected with the truck frame through the axle boxes, whereby each axle may swing relatively to the truck frame, and in which each axle is provided with a motor casing, to which is firmly secured a frame or motorcasing extension, which latter is pivoted to a cross element of the truck frame; so that the motor casing, axles, wheels, and the pivoting frame may swing bodily from the truck frame at a point substantially in the longitudinal center of the truck. The present application, therefore, is directed to a brake apparatus supported so as to be a functional part of the motor casingor the said pivot frame, and to move with 1t, so thatthe brake shoes will always be in operative alignment with the wheels; and it further consists in the details of construction and combination of parts hereinafter described and set forth in the claims. f p p In the drawing: Figure 1 is a plan view of a portion of the truck provided with my improvements, Fig. 2. is a sectional view taken on the line 4-4of Fig. 1, looking in the direction of the arrows. Fig. 3 is a sectional view of a structure with a modified king-bolt construction; Fig. 4 is a sectional view taken on the line 6-6 of Fig. 3, looking in the direction of the arrows; Fig. 5 is a plan view of a portion of a truck shown Specification of Letters Patent. Patented Nov, 10, 1914,

1910, Serial No. 590,312. Divided and thisiapplication filed March 18, 1913. Serial No. 755,093.

in Figs. 4 and 5; and Figs. 6, 7 and 8 are plan, end and side viewsrespectively of the modified form of king-bolt socket shown in Fi s. 3 to 5 inclusive.

b lmilar reference characters indicate correspondlng parts throughout the several views. The details of the truck and the meansfor movably connecting the axles with the truck frame, and the details of construction of the motor casing and pivot frame form no part of this application, and I will describe only enough of them for a thorough understandmg of the present improvements, reference being made to the above mentioned application for a moredetaileddescription.

Generically considered, the truck 1, comprlses a frame 2, wheels 3, axles 4, axle boxes, motor casing 5, brake mechanism 6, I

and connecting parts.

The frame 2, may be of any suitable con-..

journaled in the axle boxes in the usual' way, so that a detailed descriptionis unnecessary. H

The motor casing 5 is sleeved on the axle 4, as usual, but is connected with the truck at a point of support, so as to cooperate therewith and form. an element therein. This casing is of the conventional form so that it is unnecessary to describe it further than to say that it is connected to the truck. and supports the brake rigging in a manner" which will be described below.

The motor casing is fixed to two motor and brake supporting angles 11 which have their vertical webs running inopposite directions and their horizontal webs separated by the thickness of the king-bolt holder 12. The bars 1]. are secured together by bolts, screws or other suitable means, and the kingbolt holder 12 is secured to the bars 11 by suitable pins 12. that cngagethe walls of are suitable brackets, the bracket 13 being secured under the lower-angle 11 by bolts or screws, or other suitable means and the brackets 1a to the vertical webs of the angles 11. These brackets 13 and 14, carry asuitable brake shaft 15 to which is fixed an actuating lever 16 a little to one side of its center, and at its ends are fixed the downwardly depending cranks 17, which areconnected to suitable brake rods 18 which engage suitable screws 19 which screws also engage other brake rods 20 and these rods 20 engage the brake shoe holder 21 in the con ventional manner. The screw 19 is prefer ably a right and left screw, so as to permit adjustment of the rod as to length to com pensat e for wear. The brake shoe holder 24 is suspended by a suitable hanger whichis suitably supported in a bracket 23 on the upper surface of the upper bar 11 so that the brake shoe 21 can be thrown against the wheels 8 in the conventional manner, The upper end of the lever 16 is connected to the usual rods and other mechanism for controlling the brake.

The embodiment of the invention in the foregoing description is applicable either to a pivoted or a fixed truck, 2'. 6., a truck pivoted to a car body or fixed toa car body.

In Figs. 3 to 8 inclusive is shown a kingbolt 25 which is so mounted in the frame 2 of the truck as to permit of a slight but universal movement of the axle 4 so that this axle can swing from this king-bolt 25 not only in a horizontal plane but also in a vertical, to a limited extent, thus making a more flexible connection between the axle and the frame without introducing play or lostmotion in the various joints. I The motor casing 5 is secured to a bracket 26 by bolts or other suitable means and this bracket is in turn secured to abar 27 which has bolts 28 and blocks 29 and 30 to secure it to a second bar 31 which is shaped sub"- stantially as indicated in Fig. 7.

The block 30 is provided witl'rsuitable openings 32 which receive suitable bushings 33 in which the king-bolt socket 25 is trunnioned so that it can turn freely about a horizontal axis. Extending from the frame 2 are suitable plates 34 secured by rivets 35 through which extends a king-bolt 36 which passes through the king-bolt socket 25, the king-bolt 36 has a head 37 from which ex' tends a lug 38 that enters a corresponding perforation in the upper plate 34 so that this king-bolt 36 is held securely and. cannot revolve about its axis. The lower plate 34 is suitably recessed to permit the brackets 30 to extend the same to carry the brake shaft 15 as described above.

Modifications may be made in the struc= tures hereinbefore set forth without depart ing from the spirit of my invention.

flames of tlli'ii parent may be obtained for five cents each, by addressing the Commissioner of Patents,-

- wheels,

I claim 1, In a brake mechanism, the combination with an. axle having wheels, a truck frame, means for pivoting the axle and wheels to the truck frame, brake shoes for said wheels carried by said pivoting means, and further means carried by said pivoting means for operatively connecting the brake shoes with a source of power.

2. The combinationwith a car truck having side frames and a crossing, an axle and wheels thereon, means connecting the axle to the side frames, further means for pivoting said axle to the crossing comprising a transversely disposed frame pivotally con-' nected with the crossing and connected-with said axle, brake shoes movably supported by said frame in line with said wheels and further means carried by said frame for o'peratively connecting the shoes togetherand with a source of power.

3. The combination witha truck having side frames and a crossing, an axle, wheels thereon, means connecting the axle with the side frames, a motor casin secured to the axle, a laterally extending frame secured to the motor casing, a pivotal connection be tween the frame and said crossing, brake shoes carried by said frame inline with the said wheels and means carried by said frame for operatively connecting the brake shoes with the source of power.

4. A brake casing comprising an axle, wheels, and a frame, a truckframe, brackets secured to said frame extending toward the hangers depending from said brackets, brake shoes supported by said hangers in line with thewheels, brake rods secured to said shoes, a'shaft movably supported by said frame and connected with said brake rods, means for connecting said shaft with a source of power, and means for taking up the slack of the shoes.

5. In a brake mechanism, the combination with a radiating axle and wheels, of a lateral frame operatively connected with said axles, brackets ezztending from said frame toward the wheels, pendant links on the brackets, brake shoes supported by said iinks, a. shaft movably supported by said frame, crank arms on said shaft, rods connecting the said crank arms with the brake shoes and an operating lever connected with said shaft, said shaft constructed to apply brakes on one axle only.

Signed at the city of Philadelphia, county of Philadelphia and State of Pennsylvania, this 21st day of February, 1913.

ARTHUR F. H. HEAD.

Witnesses:

HE RYC. ESLING, H. F. MoKILLIr.

Washington, D. G. 

